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Autonomous unmanned aerial vehicles (UAVs) with on-board base station equipment can potentially provide connectivity in areas where the terrestrial infrastructure is overloaded, damaged, or absent. Use cases comprise emergency response,…

Signal Processing · Electrical Eng. & Systems 2019-05-13 Daniel Romero , Geert Leus

We consider a variant of the berth allocation problem-i.e., the multi-port berth allocation problem-aimed at assigning berthing times and positions to vessels in container terminals. This variant involves optimizing vessel travel speeds…

Optimization and Control · Mathematics 2021-10-05 Bernardo Martin-Iradi , Dario Pacino , Stefan Ropke

In addition to enhancing wireless communication coverage quality, reconfigurable intelligent surface (RIS) technique can also assist in positioning. In this work, we consider RIS-assisted superimposed pilot and data transmission without the…

Information Retrieval · Computer Science 2025-04-08 Wenchao Xia , Ben Zhao , Wankai Tang , Yongxu Zhu , Kai-Kit Wong , Sangarapillai Lambotharan , Hyundong Shin

With the increasing demands for safety, efficiency, and sustainability in global shipping, Automatic Identification System (AIS) data plays an increasingly important role in maritime monitoring. AIS data contains spatial-temporal variation…

Artificial Intelligence · Computer Science 2025-05-13 Zhiye Xie , Enmei Tu , Xianping Fu , Guoliang Yuan , Yi Han

Reconfigurable intelligent surface (RIS) has been recognized as a promising solution for enhancing localization accuracy. Traditional RIS-based localization methods typically rely on prior channel knowledge, beam scanning, and pilot-based…

Signal Processing · Electrical Eng. & Systems 2025-04-04 Jiawei Yao , Yijie Mao , Mingzhe Chen

In terrestrial communication networks without fixed infrastructure, unmanned aerial vehicle (UAV)-mounted mobile base stations (MBSs) provide an efficient solution to achieve wireless connectivity. This letter aims to minimize the number of…

Information Theory · Computer Science 2016-12-06 Jiangbin Lyu , Yong Zeng , Rui Zhang , Teng Joon Lim

Predicting port congestion is crucial for maintaining reliable global supply chains. Accurate forecasts enableimprovedshipment planning, reducedelaysand costs, and optimizeinventoryanddistributionstrategies, thereby ensuring timely…

Artificial Intelligence · Computer Science 2025-06-25 Guo Li , Zixiang Xu , Wei Zhang , Yikuan Hu , Xinyu Yang , Nikolay Aristov , Mingjie Tang , Elenna R Dugundji

The automatic identification system (AIS) reports vessels' static and dynamic information, which are essential for maritime traffic situation awareness. However, AIS transponders can be switched off to hide suspicious activities, such as…

Signal Processing · Electrical Eng. & Systems 2020-02-13 Sandeep Kumar Singh , Frank Heymann

This study develops a framework for unmanned aerial systems (UASs) to monitor fall hazard prevention systems near unprotected edges and openings in high-rise building projects. A three-step machine-learning-based framework was developed and…

Robotics · Computer Science 2022-09-28 Yimeng Li , Behzad Esmaeili , Masoud Gheisari , Jana Kosecka , Abbas Rashidi

In marine surveillance, distinguishing between normal and anomalous vessel movement patterns is critical for identifying potential threats in a timely manner. Once detected, it is important to monitor and track these vessels until a…

Machine Learning · Computer Science 2023-06-08 Md Asif Bin Syed , Imtiaz Ahmed

Efficiently handling Automatic Identification System (AIS) data is vital for enhancing maritime safety and navigation, yet is hindered by the system's high volume and error-prone datasets. This paper introduces the Automatic Identification…

Reconfigurable intelligent surfaces (RIS) enable smart wireless environments by dynamically controlling signal propagation to enhance communication and localization. Unmanned aerial vehicles (UAVs) can act as flying base stations and thus,…

Systems and Control · Electrical Eng. & Systems 2025-11-11 Anupam Mondal , Priyadarshi Mukherjee , Sasthi C. Ghosh

Research on coastal regions traditionally involves methods like manual sampling, monitoring buoys, and remote sensing, but these methods face challenges in spatially and temporally diverse regions of interest. Autonomous surface vehicles…

Robotics · Computer Science 2024-05-29 Mingi Jeong

Recently, transfer subspace learning based approaches have shown to be a valid alternative to unsupervised subspace clustering and temporal data clustering for human motion segmentation (HMS). These approaches leverage prior knowledge from…

Computer Vision and Pattern Recognition · Computer Science 2021-08-30 Mariella Dimiccoli , Lluís Garrido , Guillem Rodriguez-Corominas , Herwig Wendt

Seaports play a crucial role in the global economy, and researchers have sought to understand their significance through various studies. In this paper, we aim to explore the common characteristics shared by important ports by analyzing the…

Automatic breast lesion detection and classification is an important task in computer-aided diagnosis, in which breast ultrasound (BUS) imaging is a common and frequently used screening tool. Recently, a number of deep learning-based…

Image and Video Processing · Electrical Eng. & Systems 2022-10-13 Zong Fan , Ping Gong , Shanshan Tang , Christine U. Lee , Xiaohui Zhang , Pengfei Song , Shigao Chen , Hua Li

This letter studies the problem of jointly detecting active user equipments (UEs) and estimating their location in the near field, wherein the base station (BS) is unaware of the number of active (or inactive) UEs and their positions. The…

Signal Processing · Electrical Eng. & Systems 2024-10-10 Georgios Mylonopoulos , Behrooz Makki , Stefano Buzzi , Gábor Fodor

In reconfigurable intelligent surface (RIS) aided millimeter-wave (mmWave) communication systems, in order to overcome the limitation of the conventional channel state information (CSI) acquisition techniques, this paper proposes a location…

Information Theory · Computer Science 2024-10-28 Zhe Xing , Rui Wang , Xiaojun Yuan , Jun Wu

This paper introduces Bayesian supervised and unsupervised segmentation algorithms aimed at oceanic segmentation of SAR images. The data term, \emph{i.e}., the density of the observed backscattered signal given the region, is modeled by a…

Applications · Statistics 2010-07-29 Sónia Pelizzari , José M. Bioucas-Dias

Intelligent Transportation Systems (ITS) increasingly rely on connectivity for efficient traffic management and enhanced user experience. The existing ITS solutions operate mainly within a 2D domain, thus missing the potential benefits of…

Networking and Internet Architecture · Computer Science 2025-01-27 Abdul Saboor , Evgenii Vinogradov , Zhuangzhuang Cui , Sander Coene , Wout Joseph , Sofie Pollin